52804221 has 8 divisors (see below), whose sum is σ = 70771200. Its totient is φ = 35020032.

The previous prime is 52804201. The next prime is 52804229. The reversal of 52804221 is 12240825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52804221 - 2⁷ = 52804093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52804191 and 52804200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52804229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45021 + ... + 46178.

It is an arithmetic number, because the mean of its divisors is an integer number (8846400).

Almost surely, 2^52804221 is an apocalyptic number.

It is an amenable number.

52804221 is a deficient number, since it is larger than the sum of its proper divisors (17966979).

52804221 is a wasteful number, since it uses less digits than its factorization.

52804221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91395.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 52804221 is about 7266.6512920327. The cubic root of 52804221 is about 375.1654878482.

The spelling of 52804221 in words is "fifty-two million, eight hundred four thousand, two hundred twenty-one".